CeCl_3—SrCl_2—NaCl三元体系相图的研究  

Investigation on the Phase Diagram of Ternary system CeCl_3-SrCl_2-NaCl

作　　者：郑朝贵[1] 宋秀芹[1] 苏勉曾[1] 

机构地区：[1]北京大学化学系,河北师范大学化学系

出　　处：《稀土》1995年第3期9-11,共3页Chinese Rare Earths

基　　金：国家自然科学基金

摘　　要：利用ＤＴＡ研究了ＣｅＣｌ＿３－ＳｒＣｌ＿２－ＮａＣｌ三元体系相图。结果表明：本体系属简单低共熔体系。相图内有对应于ＣｅＣｌ＿３、ＳｒＣｌ＿２和ＮａＣｌ三个液相面，三条二次结晶线和一个三元低共熔点以３４．７ｗｔ－％ＣｅＣｌ＿３，４３．６ｗｔ－％ＳｒＣｌ＿２，２１．７ｗｔ％ＮａＣｌ，４８８℃）。The phase diagram of ternary system CeCl_3-SrCl_2-NaCl has been investigated bymeans of DTA, It was found that there were three fields corresponding to the prirnary crystalliza-tion of CeCl_3 ,SrCl_2 and NaCl respectively,three univariant curves related to the secondary crystal-lization,a ternary eutectic E(34.7wt%CeCl_3,43. 6wt%SrCl_2,21. 7wt%NaCl,488℃)in the sys-tem.Aternary reaction occurred in the systemis:L=CeCl_3+SrCl_2+NaCl

关 键 词：三元体系 相图 氯化铈 氯化锶 氯化钠 

分 类 号：O642.42[理学—物理化学]